中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 14 No. 5 October 2004 |
（1. Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, China;
2. Department of Mechanical Engineering,
Tsinghua University, Beijing 100084, China;
3. Metal Forming Department, Northeastern University,
Shenyang 110006, China;
4. Anshan Automobile Fittings Factory, Anshan 114014, China）
Abstract:The pressing bonding of steel plate to QTi3.5-3.5graphite slurry was studied. The bonding conditions were 620 ℃ for preheating temperature of steel plate, 530 ℃ for preheating temperature of dies, 50 MPa for pressure and 2 min for pressing time. The relationship between the solid fraction of QTi3.5-3.5graphite slurry and the interfacial mechanical property of bonding plate was obtained. The results show that when the solid fraction of QTi3.5-3.5graphite slurry is smaller than 45.8%, the interfacial shear strength of bonding plate increases with the increasing of solid fraction. When the solid fraction is larger than 45.8%, the interfacial shear strength decreases with the increasing of solid fraction. When the solid fraction is 45.8%, the largest interfacial shear strength of bonding plate 127 MPa can be got, and the interface is made up of Fe-Cu solid solution.
Key words: steel-mushy QTi3.5-3.5graphite; pressing bonding; interfacial shear strength; solid fraction
